WO2016155049A1 - 一种色偏补偿方法及装置 - Google Patents

一种色偏补偿方法及装置 Download PDF

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Publication number
WO2016155049A1
WO2016155049A1 PCT/CN2015/077140 CN2015077140W WO2016155049A1 WO 2016155049 A1 WO2016155049 A1 WO 2016155049A1 CN 2015077140 W CN2015077140 W CN 2015077140W WO 2016155049 A1 WO2016155049 A1 WO 2016155049A1
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Prior art keywords
target
sub
scale data
gray scale
pixel point
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PCT/CN2015/077140
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English (en)
French (fr)
Inventor
曾德康
陈宥烨
郭东胜
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/778,318 priority Critical patent/US9898976B2/en
Publication of WO2016155049A1 publication Critical patent/WO2016155049A1/zh
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0469—Details of the physics of pixel operation
    • G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
    • G09G2300/0491—Use of a bi-refringent liquid crystal, optically controlled bi-refringence [OCB] with bend and splay states, or electrically controlled bi-refringence [ECB] for controlling the color
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0252—Improving the response speed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40012—Conversion of colour to monochrome
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/465—Conversion of monochrome to colour
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/643—Hue control means, e.g. flesh tone control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a color shift compensation method and apparatus.
  • Liquid crystal display is a commonly used electronic device, which is favored by users because of its low power consumption, small size and light weight.
  • the current liquid crystal display is mainly a thin film transistor (TFT) liquid crystal display.
  • the TFT-LCD When designing a pixel display matrix, the TFT-LCD needs to perform centralized wiring processing in the nip area of the driving integrated circuit, and then output to each display trace. Since the distances from the driver integrated circuit to the display traces are not equal, the distance from the driver integrated circuit to the sides of the sector is relatively long, and the distance from the driver integrated circuit to the middle of the sector is relatively close. The impedance on both sides of the zone is large and the impedance in the middle is small. If the sub-pixel points on each display trace are simultaneously charged, the voltage on both sides of the display trace will be more severe than the intermediate voltage hysteresis, so that the charging time of each display trace is inconsistent.
  • the embodiment of the invention discloses a color shift compensation method and device, which can solve the color shift problem that occurs when the liquid crystal display panel is displayed, and improve the display effect.
  • the embodiment of the invention discloses a color shift compensation method, which is applied to a liquid crystal display panel, and the liquid crystal
  • the display panel is divided into a plurality of display areas, each display area includes a plurality of display traces arranged in columns, each of the display traces includes a plurality of pixel points arranged in a line, each pixel point includes at least three lines Arranged subpixels, where:
  • Target output gray scale data Determining, according to the target input gray scale data and the uplink output gray scale data, the target sub-pixel point corresponding to the target input gray scale data and the uplink output gray scale data simultaneously with the target relationship table Target output gray scale data, wherein the target relationship table includes input gray scale data of any row of sub-pixel points, output gray scale data of a previous row of sub-pixel points of any one of the row of sub-pixel points, and any one of the row of sub-pixels The corresponding relationship of the output gray scale data of the point;
  • the embodiment of the invention discloses a color shift compensation device, which is applied to a liquid crystal display panel, wherein the liquid crystal display panel is divided into a plurality of display areas, and each display area comprises a plurality of display lines arranged in columns, each of which The strip display trace includes a plurality of pixel points arranged in a line, each pixel point including at least three sub-pixel points arranged in a row, wherein:
  • An acquiring unit configured to receive target input grayscale data of a target sub-pixel point in a current row, and acquire uplink output grayscale data of a previous row of sub-pixel points on the same display trace as the target sub-pixel point;
  • a query unit configured to query, according to the target input gray scale data and the uplink output gray scale data acquired by the acquiring unit, the target input gray scale data and the uplink output gray according to the target relationship table
  • the target data corresponds to the target output gray scale data of the target sub-pixel point, wherein the target relationship table includes input gray scale data of any row of sub-pixel points, and the previous row of sub-pixel points of the any row of sub-pixel points Corresponding relationship between the output gray scale data and the output gray scale data of any one of the row of sub-pixel points;
  • a digital-to-analog conversion unit configured to perform digital-to-analog conversion on the target output gray-scale data queried by the query unit to obtain a target voltage of the target sub-pixel point;
  • An adjusting unit configured to adjust the target sub-image according to a target voltage obtained by the digital-to-analog conversion unit The color of the target pixel at which the prime point is displayed.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in a column, and each of the display traces includes a plurality of pixel points arranged in a row, and each of the pixel points includes At least three line-array sub-pixel points, therefore, when the color-shift compensation device receives the target input gray-scale data of the target sub-pixel point in the current line, it acquires the same display line as the target sub-pixel point.
  • Upstream output gray scale data of the sub-pixel point of the previous row and then, based on the target input gray scale data and the uplink output gray scale data, combined with the target relation table query and corresponding to the target input gray scale data and the uplink output gray scale data simultaneously
  • the target sub-pixel target output gray scale data, and the target output gray scale data is digital-to-analog converted to obtain a target voltage of the target sub-pixel point, and finally the target pixel point corresponding to the target sub-pixel point is adjusted according to the target voltage.
  • the color of the display is
  • the voltage that should be applied to the target sub-pixel point can be adjusted to the voltage corresponding to the target output data, thereby changing the color of the target pixel point where the target sub-pixel point is located, thereby solving the sector.
  • the color shift problem of the liquid crystal display panel is caused by the difference in impedance, and the display effect is improved.
  • FIG. 1 is a schematic flow chart of a color shift compensation method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of another color shift compensation method disclosed in an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a color shift compensation device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another color shift compensation device according to an embodiment of the present invention.
  • the embodiment of the invention discloses a color shift compensation method and device, which can solve the color shift problem that occurs when the liquid crystal display panel is displayed, and improve the display effect. The details are described below separately.
  • FIG. 1 is a schematic flow chart of a color shift compensation method according to an embodiment of the present invention.
  • the color-shift compensation method shown in FIG. 1 can be applied to a TFT-type liquid crystal display panel, a TN-type liquid crystal display panel, a tri-gate liquid crystal display panel, and the like, which are not limited in the embodiment of the present invention.
  • the color shift compensation method may include the following steps:
  • the color shift compensation device receives the target input grayscale data of the target sub-pixel point in the current row, and acquires the uplink output grayscale data of the previous row of sub-pixel points on the same display trace as the target sub-pixel.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in columns, and each of the display traces includes a plurality of pixel points arranged in a line, each of which
  • the pixel includes at least three sub-pixels arranged in a row, and the three sub-pixels commonly found on each pixel represent sub-pixels of R (red), G (green), and B (blue) colors, respectively, wherein Sub-pixel points of the W (white) and Y (yellow) colors may also be included in each pixel, which is not limited in the embodiment of the present invention.
  • the number of pixels included in each display trace is fixed, so the number of sub-pixel points included in each display trace is also fixed, but the display included in each display area is away.
  • the number of lines may be different.
  • the division area of the liquid crystal display panel is divided according to the impedance characteristics of the sector lines.
  • the display area of the liquid crystal display panel is symmetrically distributed around the center line of the liquid crystal display panel, and is close to the middle of the liquid crystal display panel.
  • the display area includes more display traces than other display areas, and the number of display traces included from the middle display area of the liquid crystal display panel to the display area on both sides is sequentially decreased.
  • the number of the display areas of the liquid crystal display panel can be divided according to the actual characteristics of the liquid crystal panel, which is not limited in the embodiment of the present invention.
  • the target sub-pixel point is a sub-pixel point in any one of the display areas of the liquid crystal display panel. Therefore, the embodiment of the present invention can be applied to any one of the display areas of the liquid crystal display panel, which is not limited in the embodiment of the present invention. .
  • the scanning circuit of the liquid crystal display panel controls the driving integrated circuit to sequentially input gray scale data to the sub-pixel points of each row, and each sub-pixel is stored in the database of the color shift compensation device.
  • the output grayscale data of the point Therefore, when the color shift compensation device receives the target input gray scale data input for the target sub-pixel point in the current row, the color shift compensation device first acquires the same display trace from the database from the target sub-pixel point. Upstream output grayscale data of the previous sub-pixel point.
  • the target sub-pixel point is any current sub-pixel point of the display trace.
  • the color shift compensation device is used to indicate that the digital signal is converted into an analog signal by using digital-to-analog conversion, that is, an analog voltage to control the color shift.
  • a compensation device applies the analog voltage to the target sub-pixel point.
  • the color shift compensation device uses the target input gray scale data and the uplink output gray scale data to query the target sub-pixel corresponding to the target input gray scale data and the uplink output gray scale data in combination with the target relationship table.
  • the target of the point outputs grayscale data.
  • the target relationship table includes input gray scale data of any row of sub-pixel points, output gray scale data of the previous row of sub-pixel points of the any row of sub-pixel points, and output gray scale of the sub-pixel points of the any row.
  • the color shift compensation device After the color shift compensation device acquires the target input gray scale data and the uplink output gray scale data, the color shift compensation device is based on the target input gray scale data and the uplink output gray scale data, and is combined with the target relationship table. Querying target output gray scale data of the target sub-pixel point corresponding to the target input gray scale data and the uplink output gray scale data.
  • the numerical range of the input gray scale data and the output gray scale data stored in the target relationship table is determined according to the number of bits of the digital to analog converter, and if the number of digits of the digital to analog converter has n bits, then the input The grayscale data and the output grayscale data can be input in a range of 0 to 2 n -1 bits, which is not limited in the embodiment of the present invention.
  • the target relationship table may be input gray scale data of any row of sub-pixel points in the display area where the target sub-pixel point is located, output gray scale data of the previous row of sub-pixel points of the any row of sub-pixel points, and the The correspondence table of the output gray scale data of any row of sub-pixel points may also be input gray scale data of any row of sub-pixel points in any one of the display areas of the liquid crystal display panel, and the upper row of the sub-pixel points of the any row.
  • the corresponding relationship table of the output gray scale data of the sub-pixels and the output gray scale data of the sub-pixel points of the row is not limited in the embodiment of the present invention.
  • the target relationship table may be stored in the display area corresponding to the target relationship table, or may be stored in the database of the color shift compensation device, which is not limited in the embodiment of the present invention.
  • the target relationship table is any display area in the liquid crystal display panel
  • the input gray scale data of any row of sub-pixel points, the output gray scale data of the previous row of sub-pixel points of any one of the sub-pixel points, and the correspondence table of the output gray scale data of the any sub-pixel point of the row then The color shift compensation device uses the target input gray scale data and the uplink output gray scale data to query the target sub-pixel point corresponding to the target input gray scale data and the uplink output gray scale data in combination with the target relationship table.
  • the target output gray scale data can be understood as that the color shift compensation device directly queries the target input gray scale data and the uplink from the target relationship table based on the target input gray scale data and the uplink output gray scale data. Output gray scale data and corresponding target gray scale data corresponding to the target sub-pixel point.
  • Table 1 is the target relationship table.
  • the gray scale data in the target relationship table varies from 0 to 255, and only some representative gray scale data are listed in the target relationship table for reference.
  • Other data may be It is calculated by the linear algorithm according to the data in the table, and may also be queried in the direct target relationship table, which is not limited in the embodiment of the present invention.
  • the color shift compensation device can output the gray scale data and the gray output data according to the target, and combine the target relationship table to query the target output gray scale data of the target sub-pixel point as 62.
  • the uplink output gray level data is 144, and the target input gray scale data of the target sub-pixel point is 112
  • the target output relationship table given in Table 1 cannot directly detect and output the gray scale data and The target input gray scale data and the corresponding target output gray scale data, but the output gray scale data of the previous row sub-pixel point of the current row sub-pixel point and the current row sub-pixel point may be queried from the table.
  • the output gray scale data of the current row sub-pixel point corresponding to 128 is 94, and the gray scale data of the current row sub-pixel point input gray level is 128 and the output gray scale data of the previous row sub-pixel point of the current row sub-pixel point is 160 simultaneously.
  • the corresponding current row sub-pixel point output gray scale data is 126. Therefore, the target output gray scale data corresponding to the uplink output gray scale data 144 and the target input gray scale data 112 may be calculated according to the linear algorithm to be 110.
  • the color shift compensation device performs digital-to-analog conversion on the target output gray-scale data to obtain a target voltage of the target sub-pixel point.
  • the color shift compensation device after the color shift compensation device is combined with the target input gray scale data and the uplink output gray scale data to simultaneously correspond to the target output gray scale data, the color shift compensation device can obtain the acquired target.
  • the gray scale data is output for digital-to-analog conversion, and then the target voltage of the target sub-pixel point is obtained.
  • the gray-scale data varies from 0 to 255. Therefore, the gray-scale data 0 corresponds to a voltage of 0 V, and the gray-scale data m The corresponding voltage is m/255 ⁇ V ref V, where m ⁇ ⁇ 0, 255 ⁇ . Therefore, if the target gray scale data queried by the color shift compensation device is 17, the target voltage of the target sub-pixel point can be obtained as V ref /15V according to the digital-to-analog conversion.
  • the color shift compensation device adjusts a color displayed by the target pixel point where the target sub-pixel point is located according to the target voltage.
  • the target sub-pixel point is one of the three sub-pixels of RGB included in the target pixel point.
  • the color shift compensation device converts the target output gray scale data into a target voltage through digital-to-analog conversion, the color shift compensation device can adjust the voltage of the target sub-pixel point to a target voltage, and then the target voltage can change the target sub-
  • the light transmittance of the area covered by the pixel changes the light intensity of the area covered by the target sub-pixel point, thereby changing the color of the target pixel point where the target sub-pixel point is located.
  • three adjacent sub-pixel points respectively represent three primary colors of R (red), G (green), and B (blue), and therefore, three sub-pixel points may constitute one pixel point, and one pixel point is displayed.
  • the color is determined by the number of R, G, and B rays respectively transmitted by the three sub-pixels representing the three primary colors of R, G, and B. Therefore, by changing the voltage of one of the sub-pixels, the color can be changed.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in a column, and each of the display traces includes a plurality of pixel points arranged in a row, and each of the pixel points includes At least three line-array sub-pixel points, therefore, when the color-shift compensation device receives the target input gray-scale data of the target sub-pixel point in the current line, it acquires the same display line as the target sub-pixel point.
  • Upstream output gray scale data of the sub-pixel point of the previous row and then, based on the target input gray scale data and the uplink output gray scale data, combined with the target relation table query and corresponding to the target input gray scale data and the uplink output gray scale data simultaneously
  • the target sub-pixel target output gray scale data, and the target output gray scale data is digital-to-analog converted to obtain a target voltage of the target sub-pixel point, and finally the target pixel point corresponding to the target sub-pixel point is adjusted according to the target voltage.
  • the color of the display is
  • the voltage that should be applied to the target sub-pixel point can be adjusted to the voltage corresponding to the target output data, thereby changing the color of the target pixel point where the target sub-pixel point is located, thereby solving the sector.
  • the color shift problem of the liquid crystal display panel is caused by the difference in impedance, and the display effect is improved.
  • FIG. 2 is a schematic flow chart of another color shift compensation method according to an embodiment of the present invention.
  • the color-shift compensation method shown in FIG. 2 can be applied to a TFT-type liquid crystal display panel, a TN-type liquid crystal display panel, a tri-gate liquid crystal display panel, and the like, which are not limited in the embodiment of the present invention.
  • the color shift compensation method may include the following steps:
  • the color shift compensation device receives the target input gray scale data of the target sub-pixel point in the current line, and Obtaining the uplink output grayscale data of the previous row of sub-pixel points on the same display trace as the target sub-pixel.
  • step S202 the color shift compensation device determines whether the target input gray scale data and the uplink output gray scale data are consistent. If not, step S203 is performed; if they are consistent, the target input gray scale data is used as the target output gray scale data, and executed. Step S207.
  • the color shift compensation device determines whether the acquired target input gray scale data is consistent with the uplink output gray scale data. If it is determined that the target input gray scale data is inconsistent with the uplink output gray scale data, the target output gray scale of the target sub-pixel point corresponding to the target input gray scale data and the uplink output gray scale data is obtained by looking up the table. Data; if it is determined that the target input gray scale data is inconsistent with the uplink output gray scale data, in fact, it can be seen from Table 1 given in the method embodiment shown in FIG.
  • the table lookup process may not be needed, thereby directly targeting the target sub-
  • the target input gray scale data of the pixel is used as the target output gray scale data of the target sub-pixel point.
  • step S203 When it is determined in step S202 that the target input grayscale data does not coincide with the uplink output grayscale data, the color shift compensation device selects any one of the display regions of the liquid crystal display panel as the target display region.
  • the color shift compensation device pre-stores input gray scale data including any row of sub-pixel points, output gray scale data of the previous row of sub-pixel points of the any row of sub-pixel points, and sub-pixel points of the any row of sub-pixels.
  • a target relationship table for outputting the correspondence relationship of the grayscale data.
  • the target relationship table may be input gray scale data of any row of sub-pixel points in the display area where the target sub-pixel point is located, output gray scale data of the previous row of sub-pixel points of the any sub-pixel point, and any one of the row sub-pixels
  • the correspondence table of the output gray scale data of the pixel points may also be input gray scale data of any row of sub-pixel points in any one of the display regions of the liquid crystal display panel, and the previous row of sub-pixel points of the any sub-pixel point of the row.
  • the output gray scale data and the correspondence table of the output gray scale data of any one of the sub-pixel points of the row can be understood as the current row of sub-pixels. Therefore, the previous row of sub-pixels of any row of sub-pixels can be understood as the previous row of sub-pixels of the current row of sub-pixels.
  • the color shift compensation device is used in all display areas of the liquid crystal display panel.
  • the target area is selected as the target display area. Therefore, the target relationship table is the input gray scale data of any row of sub-pixel points in the target display area, and the output gray of the previous row of sub-pixel points of the any row of sub-pixel points.
  • the color shift compensation device queries, according to the target input gray scale data and the uplink output gray scale data, the target sub-pixel corresponding to the target input gray scale data and the uplink output gray scale data from the target relationship table. Grayscale data is output in the middle of the point.
  • the color shift compensation device uses the target input gray scale data and the uplink output gray scale data as a basis,
  • the intermediate output gray scale data of the target sub-pixel point corresponding to the target input gray scale data and the uplink output gray scale data is found in the target relationship table.
  • the intermediate output gray scale data is output gray scale data corresponding to the target voltage input data and the uplink output gray scale data of the target display area, and is not output gray scale data of the target sub-pixel point.
  • a process of querying the middle output gray scale data of the target sub-pixel point corresponding to the target input gray scale data and the uplink output gray scale data from the target relationship table and the method shown in FIG. 1
  • the target relationship table of the display area where the target sub-pixel point is located the target output gray level of the target sub-pixel point corresponding to the target input gray-scale data and the uplink output gray-scale data is queried.
  • the process of the data is consistent, and the table can be directly searched or calculated by a linear algorithm according to the data in the table, which is not described in the embodiment of the present invention.
  • the color shift compensation device acquires a preset correlation coefficient between the output grayscale data of the target display region and the output grayscale data of the display region where the target subpixel is located.
  • the color shift compensation device stores the output gray scale of the target display area.
  • a table of correlation coefficients between the data and the output grayscale data for each display area Therefore, if you want to obtain the current row input grayscale data of each display area and the current row output grayscale data corresponding to the previous row of output grayscale data, you need to first find the grayscale data with the target input from the target relational table.
  • the color shift compensation device determines target output gray scale data of the target sub-pixel point based on the intermediate output gray scale data and the correlation coefficient.
  • the color shift compensation device determines the target sub-pixel point based on the intermediate output gray scale data and the correlation coefficient.
  • the target outputs grayscale data.
  • the color shift compensation device performs digital-to-analog conversion on the target output gray-scale data to obtain a target voltage of the target sub-pixel point.
  • the color shift compensation device uses the target input gray scale data as the target output gray of the target sub-pixel point.
  • the order data is then subjected to digital-to-analog conversion of the target output gray-scale data to obtain a target voltage of the target sub-pixel point.
  • the color shift compensation device after determining the target output data of the target sub-pixel point in step S206, the color shift compensation device also performs digital-to-analog conversion on the target output gray-scale data to obtain a target voltage of the target sub-pixel point.
  • the color shift compensation device adjusts a color displayed by the target pixel point where the target sub-pixel point is located according to the target voltage.
  • the specific manner in which the color shift compensation device adjusts the color displayed by the target pixel point where the target sub-pixel point is located according to the target voltage may include the following steps:
  • Step 11 the color shift compensation device adjusts the voltage of the target sub-pixel point to the target voltage
  • Step 12 The color shift compensation device controls the liquid crystal molecules of the target sub-pixel point to rotate to a target rotation angle according to the target voltage;
  • Step 13) The color shift compensation device adjusts the light intensity of the target sub-pixel point according to the target rotation angle to adjust the color displayed by the target pixel point where the target sub-pixel point is located.
  • the liquid crystal molecules of the target sub-pixel point can be understood as liquid crystal molecules distributed in the region covered by the target sub-pixel point. Therefore, after the color shift compensation device digitally converts the target output gray scale data to obtain the target voltage of the target sub-pixel point, the voltage of the target sub-pixel point is adjusted to the target voltage, so that the liquid crystal on the target sub-pixel point.
  • the rotation of the molecule to the target rotation angle can adjust the amount of light transmitted through the liquid crystal molecules, thereby changing the proportion of the light of the RGB three primary colors of the target pixel point where the target sub-pixel point is located, thereby changing the position of the target sub-pixel point. The color displayed by the target pixel.
  • the color displayed on the target pixel is determined by the number of rays transmitted by the three sub-pixels on the target pixel. If the voltage on the target sub-pixel changes, the target sub-pixel is changed. The rotation angle of the liquid crystal molecules, thereby changing the amount of light transmitted through the liquid crystal molecules in the area covered by the target sub-pixels, thereby changing the color displayed by the target pixel, so that the color shift compensation device can control the display
  • the color of the display of the target pixel point where the target sub-pixel point is located is the color corresponding to the target output gray scale data.
  • the target sub-pixel point is a G sub-pixel point
  • the color-shift compensation device directly uses the target input gray-scale data 128 of the G sub-pixel point as the target output gray-scale data, then the target output gray-scale data at this time It is 128, and the target voltage of the G sub-pixel point is 0.50V ref . Therefore, the target pixel point where the G sub-pixel point is displayed is compared with other pixels, especially in the liquid crystal display panel. The color displayed by the pixels in the middle area may be greenish.
  • the color shift compensation device queries the target output gray scale data of the target sub-pixel point corresponding to the target input gray scale data 128 and the uplink output gray scale data 160 by the query from the target relationship table to be 126, then the color The target voltage of the target sub-pixel point obtained by the digital compensation device is 0.49V ref , and the rotation angle of the liquid crystal molecules of the target sub-pixel point can be adjusted to a target rotation corresponding to 0.49V ref according to the target voltage.
  • the color shift compensation device can determine the number of green light rays corresponding to the G sub-pixel point from the liquid crystal molecules covered by the target sub-pixel point, thereby changing the target of the G sub-pixel point The proportion of the RGB G rays in the pixel, which in turn can change the color displayed by the target pixel.
  • the specific manner in which the color shift compensation device adjusts the voltage of the target sub-pixel point to the target voltage may include the following steps:
  • Step 21 The color shift compensation device determines whether the target voltage is greater than a current voltage of the target sub-pixel point
  • Step 22) When it is determined that the target voltage is greater than a current voltage of the target sub-pixel point, the color shift compensation device increases the current voltage of the target sub-pixel point to the target voltage;
  • Step 23 When it is determined that the target voltage is less than the current voltage of the target sub-pixel point, the color shift compensation device reduces the current voltage of the target sub-pixel point to the target voltage.
  • the color shift compensation device digitally converts the target output gray scale data to obtain the target voltage of the target sub-pixel point
  • the relationship between the target voltage and the current voltage at the target sub-pixel point is determined, if The target voltage is greater than the current voltage at the target sub-pixel point, then the color shift compensation device needs to perform charging processing on the target sub-pixel point to increase the voltage on the target sub-pixel point to the target voltage, and if The target voltage is less than the current voltage at the target sub-pixel point, then the color shift compensation device needs to discharge the target sub-pixel point to reduce the voltage on the target sub-pixel point to the target voltage, and if The target voltage is consistent with the current voltage at the target sub-pixel point, and the color shift compensation device continues to maintain the voltage at the target sub-pixel point.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in a column, and each of the display traces includes a plurality of pixel points arranged in a row, and each of the pixel points includes At least three line-array sub-pixel points, therefore, when the color-shift compensation device receives the target input gray-scale data of the target sub-pixel point in the current line, it acquires the same display line as the target sub-pixel point.
  • Upstream output gray scale data of the sub-pixel point of the previous row and then, based on the target input gray scale data and the uplink output gray scale data, combined with the target relation table query and corresponding to the target input gray scale data and the uplink output gray scale data simultaneously
  • the target sub-pixel target output gray scale data, and the target output gray scale data is digital-to-analog converted to obtain a target voltage of the target sub-pixel point, and finally the target pixel point corresponding to the target sub-pixel point is adjusted according to the target voltage.
  • the color of the display is
  • the target relationship table set for only one display area in all display areas of the liquid crystal display panel since the storage target relation table requires a register address, if there is only one target relation table, the register address can be reduced, and the production cost can be saved.
  • the voltage that should be applied to the target sub-pixel point can be adjusted to a voltage corresponding to the target output data, thereby changing the color of the target pixel point where the target sub-pixel point is located, thereby solving the impedance
  • the difference causes the color shift of the liquid crystal display panel to improve the display effect.
  • FIG. 3 is a schematic structural diagram of a color shift compensation apparatus according to an embodiment of the present invention.
  • the color-shift compensation device 300 shown in FIG. 3 can be applied to a TFT-type liquid crystal display panel, a TN-type liquid crystal display panel, a tri-gate liquid crystal display panel, and the like, which are not limited in the embodiment of the present invention.
  • the color shift compensation device 300 may include the following units:
  • the obtaining unit 301 is configured to receive target input gray scale data of the target sub-pixel point in the current row, and acquire uplink output gray scale data of the previous row of sub-pixel points on the same display trace as the target sub-pixel point.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in columns, and each of the display traces includes a plurality of pixel points arranged in a line, each of which
  • the pixel includes at least three sub-pixels arranged in a row, and the three sub-pixels commonly found on each pixel represent sub-pixels of R (red), G (green), and B (blue) colors, respectively, wherein Sub-pixel points of the W (white) and Y (yellow) colors may also be included in each pixel, which is not limited in the embodiment of the present invention.
  • the number of pixels included in each display trace is fixed, so the number of sub-pixel points included in each display trace is also fixed, but the display included in each display area is away.
  • the number of lines may be different.
  • the division area of the liquid crystal display panel is divided according to the impedance characteristics of the sector lines.
  • the display area of the liquid crystal display panel is symmetrically distributed around the center line of the liquid crystal display panel, and is close to the middle of the liquid crystal display panel.
  • the display area includes more display traces than other display areas, and the number of display traces included from the middle display area of the liquid crystal display panel to the display area on both sides is sequentially decreased.
  • the number of the display areas of the liquid crystal display panel can be divided according to the actual characteristics of the liquid crystal panel, which is not limited in the embodiment of the present invention.
  • the target sub-pixel point is a sub-pixel point in any one of the display areas of the liquid crystal display panel. Therefore, the embodiment of the present invention can be applied to any one of the display areas of the liquid crystal display panel, which is not limited in the embodiment of the present invention. .
  • the scanning circuit of the liquid crystal display panel controls the driving integrated circuit to sequentially input gray scale data to the sub-pixel points of each row, and the output gray scale data of each sub-pixel point is stored in the database of the color shift compensation device 300. . Therefore, after receiving the target input gray scale data input for the target sub-pixel point in the current row, the obtaining unit 301 acquires the previous row of sub-pixel points on the same display trace from the target sub-pixel point from the database. Upstream output grayscale data.
  • the target sub-pixel point is any current sub-pixel point of the display trace.
  • the color shift compensation device 300 is instructed to convert the digital signal into an analog signal by using digital-to-analog conversion, that is, an analog voltage to control the color.
  • the offset compensation device 300 applies the analog voltage to the target sub-pixel point.
  • the query unit 302 is configured to, according to the target input gray scale data and the uplink output gray scale data acquired by the obtaining unit 301, combine the target relationship table query with the target input gray scale data and the uplink output gray scale data simultaneously.
  • the target sub-pixel point of the target outputs grayscale data.
  • the target relationship table includes input gray scale data of any row of sub-pixel points, output gray scale data of the previous row of sub-pixel points of the any row of sub-pixel points, and output gray scale of the sub-pixel points of the any row.
  • the query unit 302 bases on the target input gray scale data and the uplink output gray scale data, and combines the target relationship table to query and The target input gray scale data and the uplink output gray scale data simultaneously correspond to the target output gray scale data of the target sub-pixel point.
  • the numerical range of the input gray scale data and the output gray scale data stored in the target relationship table is determined according to the number of bits of the digital to analog converter, and if the number of digits of the digital to analog converter has n bits, then the input The grayscale data and the output grayscale data can be input in a range of 0 to 2 n -1 bits, which is not limited in the embodiment of the present invention.
  • the target relationship table may be input gray scale data of any row of sub-pixel points in the display area where the target sub-pixel point is located, output gray scale data of the previous row of sub-pixel points of the any row of sub-pixel points, and the The correspondence table of the output gray scale data of any row of sub-pixel points may also be input gray scale data of any row of sub-pixel points in any one of the display areas of the liquid crystal display panel, and the upper row of the sub-pixel points of the any row.
  • the corresponding relationship table of the output gray scale data of the sub-pixels and the output gray scale data of the sub-pixel points of the row is not limited in the embodiment of the present invention.
  • the target relationship table may be stored in the display area corresponding to the target relationship table, or may be stored in the database of the color cast compensation device 300, which is not limited in the embodiment of the present invention.
  • the query unit 302 is based on the target input gray scale data and the uplink output gray scale data, and the target relationship table is combined with the target input.
  • the target output gray scale data of the sub-pixel point can be understood as that the query unit 302 directly queries the target input gray scale data and the target input gray scale data based on the target input gray scale data and the uplink output gray scale data.
  • the uplink output gray scale data corresponds to the target output gray scale data of the target sub-pixel point.
  • the gray scale data in the target relationship table varies from 0 to 255, and only a part of representative gray scale data is listed in the target relationship table.
  • other data may be calculated by a linear algorithm according to the data in the table, or may be queried in the direct target relationship table, which is not limited in the embodiment of the present invention.
  • the uplink output gray scale data is 128, and the query unit 302 can output the gray scale data and the uplink output gray scale data according to the target acquired by the obtaining unit 301, and can combine the target relationship table to query the target output gray of the target sub-pixel point.
  • the order data is 62.
  • the uplink output gray level data is 144, and the target input gray scale data of the target sub-pixel point is 112
  • the query unit 302 can query, from the table, the output of the previous row of sub-pixel points with the current row sub-pixel input gray scale data of 96 and the current row sub-pixel point.
  • the gray scale data is 128 and the corresponding current row sub-pixel point output gray scale data is 94
  • the current row sub-pixel point input gray scale data is 128 and the output row gray pixel data of the current row sub-pixel point is output gray scale data.
  • the output gray scale data of the current row sub-pixel point corresponding to 160 is 126. Therefore, the target output gray scale data corresponding to the uplink output gray scale data 144 and the target input gray scale data 112 may be calculated according to the linear algorithm. 110.
  • the digital-to-analog conversion unit 303 is configured to perform digital-to-analog conversion on the target output gray-scale data queried by the query unit 302 to obtain a target voltage of the target sub-pixel point.
  • the digital-to-analog conversion unit 303 can output the obtained target.
  • the gray scale data is digital-to-analog converted, and then the target voltage of the target sub-pixel point is obtained.
  • the gray-scale data varies from 0 to 255. Therefore, the gray-scale data 0 corresponds to a voltage of 0 V, and the gray-scale data m The corresponding voltage is m/255 ⁇ V ref V, where m ⁇ ⁇ 0, 255 ⁇ . Therefore, if the target gray scale data queried by the query unit 302 is 17, the digital-to-analog conversion unit 303 can obtain the target voltage of the target sub-pixel point as V ref /15V according to the digital-to-analog conversion.
  • the adjusting unit 304 is configured to adjust a color displayed by the target pixel point where the target sub-pixel point is located according to the target voltage.
  • the target sub-pixel point is one of the three sub-pixels of RGB included in the target pixel point.
  • the adjustment unit 304 may adjust the voltage of the target sub-pixel point to a target voltage, and then the target voltage may change the target sub-pixel.
  • the light transmittance of the area covered by the point changes the light intensity of the area covered by the target sub-pixel point, thereby changing the color of the target pixel point where the target sub-pixel point is located.
  • three adjacent sub-pixel points respectively represent three primary colors of R (red), G (green), and B (blue). Therefore, three sub-pixel points can form one pixel point, and one pixel point search
  • the color is determined by the number of R, G, and B rays respectively transmitted by the three sub-pixels representing the three primary colors of R, G, and B. Therefore, by changing the voltage of one of the sub-pixels, the color can be changed.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in a column, and each of the display traces includes a plurality of pixel points arranged in a row, and each of the pixel points includes At least three line-array sub-pixel points, therefore, when the color-shift compensation device receives the target input gray-scale data of the target sub-pixel point in the current line, it acquires the same display line as the target sub-pixel point.
  • Upstream output gray scale data of the sub-pixel point of the previous row and then, based on the target input gray scale data and the uplink output gray scale data, combined with the target relation table query and corresponding to the target input gray scale data and the uplink output gray scale data simultaneously
  • the target sub-pixel target output gray scale data, and the target output gray scale data is digital-to-analog converted to obtain a target voltage of the target sub-pixel point, and finally the target pixel point corresponding to the target sub-pixel point is adjusted according to the target voltage.
  • the color of the display is
  • FIG. 4 is a schematic structural diagram of another color shift compensation device according to an embodiment of the present invention.
  • the color shift compensation device 400 shown in FIG. 4 can be applied to a TFT liquid crystal display panel, a TN liquid crystal display panel, a tri-gate liquid crystal display panel, and the like, which are not limited in the embodiment of the present invention.
  • the functions of the obtaining unit 401 and the digital-to-analog converting unit 403 in the embodiment of the present invention are the same as those of the obtaining unit 301 and the digital-to-analog converting unit 303 in the color-shifting compensation device 300 shown in FIG.
  • the color shift compensation device 400 may include the following units:
  • the obtaining unit 401 is configured to receive target input gray scale data of the target sub-pixel point in the current row, and acquire uplink output gray scale data of the previous row of sub-pixel points on the same display trace as the target sub-pixel point.
  • the determining unit 402 is configured to determine whether the target input grayscale data acquired by the acquiring unit 401 and the uplink output grayscale data are consistent.
  • the determining unit 402 determines whether the acquired target input gray scale data is consistent with the uplink output gray scale data. If the determining unit 402 determines that the target input gray scale data is inconsistent with the uplink output gray scale data, the query unit 403 needs to obtain the target subpixel corresponding to the target input gray scale data and the uplink output gray scale data by using a lookup table. The target of the point outputs grayscale data; if the determining unit 402 determines that the target input grayscale data is inconsistent with the uplink output grayscale data, it can be seen from Table 1 given in the method embodiment shown in FIG.
  • the output gray scale data of the current row sub-pixel point does not change, therefore, the check may not be needed.
  • the table process so that the target input gray scale data of the target sub-pixel point can be directly used as the target output gray scale data of the target sub-pixel point.
  • the query unit 403 is configured to use, according to the target input gray scale data and the uplink output gray scale data acquired by the obtaining unit 401, when the determining unit 402 determines that the target input gray scale data is inconsistent with the uplink output gray scale data, Combine the target relationship table query with the target input grayscale data and the upper The row outputs gray scale data and corresponds to the target output gray scale data of the target sub-pixel point.
  • the query unit 403 may include a selection subunit 4031, a query subunit 4032, an acquisition subunit 4033, and a determination subunit 4034, where:
  • the sub-unit 4031 is selected to select any one of the display areas of the liquid crystal display panel as the target display area.
  • the query sub-unit 4032 is configured to, according to the target input gray-scale data and the uplink output gray-scale data acquired by the acquiring unit 401, query from the target relationship table and simultaneously correspond to the target input gray-scale data and the uplink output gray-scale data.
  • the grayscale data is output in the middle of the target sub-pixel point.
  • the obtaining sub-unit 4033 is configured to obtain a preset correlation coefficient between the output gray scale data of the target display area and the output gray scale data of the display area where the target sub-pixel point is located.
  • the determining sub-unit 4034 is configured to determine the target output gray-scale data of the target sub-pixel point based on the intermediate output gray-scale data queried by the query sub-unit 4032 and the correlation coefficient acquired by the obtaining sub-unit 4033.
  • the color shift compensation device 400 pre-stores input gray scale data including any row of sub-pixel points, output gray scale data of the previous row of sub-pixel points of the any row of sub-pixel points, and any row of sub-pixel points.
  • the target relationship table may be input gray scale data of any row of sub-pixel points in the display area where the target sub-pixel point is located, output gray scale data of the previous row of sub-pixel points of the any sub-pixel point, and any one of the row sub-pixels
  • the correspondence table of the output gray scale data of the pixel points may also be input gray scale data of any row of sub-pixel points in any one of the display regions of the liquid crystal display panel, and the previous row of sub-pixel points of the any sub-pixel point of the row.
  • the output gray scale data and the correspondence table of the output gray scale data of any one of the sub-pixel points of the row can be understood as the current row of sub-pixels. Therefore, the previous row of sub-pixels of any row of sub-pixels can be understood as the previous row of sub-pixels of the current row of sub-pixels.
  • the selection sub-unit 4031 arbitrarily selects one display area from the display areas of the liquid crystal display panel as the target display area. Therefore, the target relationship table is any sub-pixel point of the target display area. Input gray scale data, output gray scale data of the previous row of sub-pixel points of any one of the sub-pixel points, and correspondence table of the output gray scale data of the one of the row of sub-pixel points.
  • the query subunit 4032 searches for the target input grayscale data and the uplink output grayscale data from the target relationship table based on the target input grayscale data and the uplink output grayscale data.
  • the grayscale data is output in the middle of the target sub-pixel point.
  • the intermediate output gray scale data is output gray scale data corresponding to the target voltage input data and the uplink output gray scale data of the target display area, and is not output gray scale data of the target sub-pixel point.
  • the query subunit 4032 queries, from the target relationship table, a process of outputting grayscale data of the target sub-pixel point corresponding to the target input grayscale data and the uplink output grayscale data, and FIG. 1
  • the query unit 302 given in the method embodiment shown directly queries the target sub-data corresponding to the target input gray-scale data and the uplink output gray-scale data from the target relationship table of the display area where the target sub-pixel point is located.
  • the process of outputting the gray-scale data of the pixel is consistent, and the table can be directly searched or calculated by a linear algorithm according to the data in the table, which is not described in the embodiment of the present invention.
  • the target relationship table is a gray scale data relation table in the target display area
  • the color shift compensation device stores the output gray scale data of the target display area.
  • a correlation coefficient table with output gray scale data for each display area Therefore, if you want to obtain the current row input grayscale data of each display area and the current row output grayscale data corresponding to the previous row of output grayscale data, the query subunit 4032 needs to first find the target from the target relational table.
  • the determining subunit 4034 determines the intermediate output grayscale data and the correlation coefficient.
  • the target sub-pixel target output gray scale data is the target sub-pixel target output gray scale data.
  • the target input gray scale data of the target sub-pixel point acquired by the acquisition unit 401 is 32, and the previous row of the target sub-pixel point is The grayscale data of the uplink output of the pixel is 192, and the determining unit 402 determines that the target input grayscale data is inconsistent with the uplink output grayscale data, then the query subunit 4032 can query from Table 1
  • the intermediate output grayscale data corresponding to the target input grayscale data and the uplink output grayscale data is 30, and if the obtaining subunit 4033 obtains the output grayscale data of the target display region and the display region where the target subpixel is located The correlation coefficient is 0.75.
  • the digital-to-analog conversion unit 404 is configured to perform digital-to-analog conversion on the target output gray-scale data to obtain a target voltage of the target sub-pixel point.
  • the color shift compensation device 400 uses the target input gray scale data as the target sub-pixel point.
  • the target outputs gray scale data, and then the digital-to-analog conversion unit 404 performs digital-to-analog conversion on the target output gray-scale data to obtain a target voltage of the target sub-pixel point.
  • the digital-to-analog conversion unit 404 after the query unit 403 queries the target output gray scale data of the target sub-pixel point, the digital-to-analog conversion unit 404 also performs digital-to-analog conversion on the target output gray-scale data to obtain the target sub-pixel point. Target voltage.
  • the adjusting unit 405 is configured to adjust a color displayed by the target pixel point where the target sub-pixel point is located according to the target voltage obtained by the digital-to-analog conversion unit 404.
  • the adjusting unit 405 may include an adjusting subunit 4051, a control subunit 4052, and an executing subunit 4053, where:
  • the adjusting subunit 4051 is configured to adjust the voltage of the target sub-pixel point to the target voltage.
  • the control subunit 4052 is configured to control the liquid crystal molecules of the target sub-pixel point to rotate to a target rotation angle according to the target voltage.
  • the executing subunit 4053 is configured to adjust a light intensity of the target sub-pixel point according to the target rotation angle to adjust a color displayed by the target pixel point where the target sub-pixel point is located.
  • the liquid crystal molecules of the target sub-pixel point can be understood as liquid crystal molecules distributed in the region covered by the target sub-pixel point. Therefore, after the digital-to-analog conversion unit 404 digitally-modulates the target output gray-scale data to obtain the target voltage of the target sub-pixel point, the adjustment sub-unit 4051 adjusts the voltage of the target sub-pixel point to the target voltage, so that the control sub-unit 4052 controls the liquid crystal molecules on the target sub-pixel to rotate to a target rotation angle, so that the amount of light transmitted through the liquid crystal molecules can be adjusted, thereby changing the proportion of the RGB three primary colors of the target pixel at which the target sub-pixel is located.
  • the execution sub-unit 4053 to adjust the display of the target pixel point where the target sub-pixel point is located colour.
  • the color displayed on the target pixel is determined by the number of rays transmitted by the three sub-pixels on the target pixel. If the voltage on the target sub-pixel changes, the target sub-pixel is changed.
  • the rotation angle of the liquid crystal molecules thereby changing the amount of light transmitted through the liquid crystal molecules in the area covered by the target sub-pixels, thereby changing the color displayed by the target pixel, so that the execution sub-unit 4053 can control the target during display.
  • the color of the display of the target pixel at which the sub-pixel is located is the color corresponding to the target output grayscale data.
  • the target sub-pixel point is a G sub-pixel point
  • the color-shift compensation device 400 directly uses the target input gray-scale data 128 of the G sub-pixel point as the target output gray-scale data, then the target output gray level at this time
  • the data is 128, and the target voltage of the G sub-pixel point is 0.50V ref . Therefore, the target pixel point where the G sub-pixel point is displayed is compared with other pixels, especially in the liquid crystal display.
  • the color displayed by the pixels in the middle of the panel may be greenish.
  • the query unit 403 queries the target output grayscale data of the target sub-pixel point corresponding to the target input grayscale data 128 and the uplink output grayscale data 160 by the query by the query to be 126, then the digital-to-analog conversion
  • the target voltage of the target sub-pixel point that the unit 404 can obtain by digital-to-analog conversion is 0.49V ref , and then the adjusting unit 405 can adjust the rotation angle of the liquid crystal molecules of the target sub-pixel point to 0.49V according to the target voltage.
  • the target rotation angle corresponding to the ref and then the color shift compensation device 400 can determine the amount of the green light corresponding to the G sub-pixel point from the liquid crystal molecules covered by the target sub-pixel point, thereby changing the G The proportion of the RGB G rays in the target pixel where the sub-pixel is located, which in turn can change the color displayed by the target pixel.
  • the adjustment subunit 4051 can also perform the following operations:
  • the current voltage of the target sub-pixel point is reduced to the target voltage.
  • the adjustment sub-unit 4051 in the adjustment unit 405 first determines the target voltage and the target sub- The relationship of the current voltage at the pixel, if the target voltage is greater than the current voltage at the target sub-pixel point, then the adjustment sub-unit 4051 needs to target the sub-pixel
  • the charging process is performed to increase the voltage at the target sub-pixel point to the target voltage, and if the target voltage is less than the current voltage at the target sub-pixel point, the adjustment sub-unit 4051 needs to perform the target sub-pixel point.
  • the liquid crystal display panel is divided into a plurality of display areas, each of the display areas includes a plurality of display traces arranged in a column, and each of the display traces includes a plurality of pixel points arranged in a row, and each of the pixel points includes At least three line-array sub-pixel points, therefore, when the color-shift compensation device receives the target input gray-scale data of the target sub-pixel point in the current line, it acquires the same display line as the target sub-pixel point.
  • Upstream output gray scale data of the sub-pixel point of the previous row and then, based on the target input gray scale data and the uplink output gray scale data, combined with the target relation table query and corresponding to the target input gray scale data and the uplink output gray scale data simultaneously
  • the target sub-pixel target output gray scale data, and the target output gray scale data is digital-to-analog converted to obtain a target voltage of the target sub-pixel point, and finally the target pixel point corresponding to the target sub-pixel point is adjusted according to the target voltage.
  • the color of the display is
  • the target relationship table set for only one display area in all display areas of the liquid crystal display panel since the storage target relation table requires a register address, if there is only one target relation table, the register address can be reduced, and the production cost can be saved.
  • the voltage that should be applied to the target sub-pixel point can be adjusted to a voltage corresponding to the target output data, thereby changing the color of the target pixel point where the target sub-pixel point is located, thereby solving the impedance
  • the difference causes the color shift of the liquid crystal display panel to improve the display effect.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

一种色偏补偿方法及装置，涉及显示技术领域，其中，该方法包括：色偏补偿装置当接收当前行中目标亚像素点的目标输入灰阶数据时，会获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据，然后以目标输入灰阶数据和上行输出灰阶数据为依据，将结合目标关系表查询到的与该目标输入灰阶数据和该上行输出灰阶数据同时对应的目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压，最后根据该目标电压调整该目标亚像素点所在的目标像素点显示的颜色。该方案能够解决扇形区由阻抗差异导致液晶显示面板的色偏问题，提高显示效果。

Description

一种色偏补偿方法及装置
本申请要求于2015年4月1日提交中国专利局、申请号为201510153123.3、发明名称为“一种色偏补偿方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示技术领域，具体涉及一种色偏补偿方法及装置。
背景技术
液晶显示器(Liquid Crystal Display，LCD)是一种常用的电子设备，由于其具有功耗低、体积小、重量轻等特点，因此备受用户的青睐。目前的液晶显示器主要是以薄膜晶体管(Thin Film Transistor，TFT)液晶显示器为主。
TFT-LCD在进行像素显示矩阵设计的时候，需要在驱动集成电路的压合区进行集中布线处理，然后再输出到各显示走线。由于驱动集成电路输出到各显示走线的距离是不相等的，表现为从驱动集成电路到扇形区两侧的距离较远，而从驱动集成电路到扇形区中间的距离较近，因此，扇形区两侧的阻抗较大，中间的阻抗较小。如果同时对各显示走线上的亚像素点进行充电，显示走线上的两侧电压就会比中间电压迟滞严重，使得每条显示走线上的充电时间不一致。一旦显示走线上的亚像素点的充电时间不足，该亚像素点保持的电位就不能达到理想电位，该亚像素点所在的像素点就会在显示时表现三基色中的R(红色)或G(绿色)或B(蓝色)的亮度偏暗。在液晶显示面板的混色画面显示过程中，两侧就会出现严重的色偏问题，表现为偏红、偏蓝或者偏绿。因此，如何减少液晶显示器在显示时出现色偏已成为亟待解决的问题。
发明内容
本发明实施例公开了一种色偏补偿方法及装置，能够解决液晶显示面板在显示时出现的色偏问题，提高显示效果。
本发明实施例公开了一种色偏补偿方法，应用于液晶显示面板，所述液晶 显示面板划分为多个显示区域，每个显示区域包括列式排列的多条显示走线，每条显示走线上包括行式排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，其中：
接收当前行中目标亚像素点的目标输入灰阶数据，并获取与所述目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据；
以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，结合目标关系表查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据，其中，所述目标关系表包括任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系；
将所述目标输出灰阶数据进行数模转换得到所述目标亚像素点的目标电压；
根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
相应的，本发明实施例公开了一种色偏补偿装置，应用于液晶显示面板，所述液晶显示面板划分为多个显示区域，每个显示区域包括列式排列的多条显示走线，每条显示走线上包括行式排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，其中：
获取单元，用于接收当前行中目标亚像素点的目标输入灰阶数据，并获取与所述目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据；
查询单元，用于以所述获取单元获取到的所述目标输入灰阶数据和所述上行输出灰阶数据为依据，结合目标关系表查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据，其中，所述目标关系表包括任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系；
数模转换单元，用于将所述查询单元查询到的所述目标输出灰阶数据进行数模转换得到所述目标亚像素点的目标电压；
调整单元，用于根据所述数模转换单元得到的目标电压调整所述目标亚像 素点所在的目标像素点显示的颜色。
实施本发明实施例，具有如下有益效果：
本发明实施例中，液晶显示面板划分有多个显示区域，每个显示区域包括列排列的多条显示走线，每条显示走线上包括行排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，因此，色偏补偿装置当接收当前行中目标亚像素点的目标输入灰阶数据时，会获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据，然后以目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据，并将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压，最后根据该目标电压调整该目标亚像素点对应的目标像素点显示的颜色。通过本发明实施例，可以将该目标亚像素点的本应该施加的电压调整至与目标输出数据对应的电压，从而改变该目标亚像素点所在的目标像素点显示的颜色，进而能够解决扇形区由阻抗差异导致液晶显示面板的色偏问题，提高显示效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例公开的一种色偏补偿方法的流程示意图；
图2是本发明实施例公开的另一种色偏补偿方法的流程示意图；
图3是本发明实施例公开的一种色偏补偿装置的结构示意图；
图4是本发明实施例公开的另一种色偏补偿装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例公开了一种色偏补偿方法及装置，能够解决液晶显示面板在显示时出现的色偏问题，提高显示效果。以下分别进行详细说明。
请参阅图1，图1是本发明实施例公开的一种色偏补偿方法的流程示意图。其中，图1所示的色偏补偿方法可以应用于TFT型液晶显示面板、TN型液晶显示面板以及三栅极型液晶显示面板等，本发明实施例不做限定。如图1所示，该色偏补偿方法可以包括以下步骤：
S101、色偏补偿装置接收当前行中目标亚像素点的目标输入灰阶数据，并获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据。
本发明实施例中，液晶显示面板上划分有多个显示区域，每个显示区域包括列式排列的多条显示走线，每条显示走线上包括行式排列的多个像素点，每一个像素点包括至少三个行式排列的亚像素点，每一个像素点上常见的三个亚像素点分别代表R(红)、G(绿)和B(蓝)颜色的亚像素点，其中，每一个像素点中还可以包括W(白)以及Y(黄)颜色的亚像素点，本发明实施例不做限定。
本发明实施例中，每条显示走线上包括的像素点的数量是固定的，所以每条显示走线上包括的亚像素点的数量也就固定，但每个显示区域所包括的显示走线的数量是可以不相同的，对液晶显示面板划分区域是根据扇形区走线的阻抗特性划分，液晶显示面板的显示区域以液晶显示面板中心线为中心呈对称分布，且靠近液晶显示面板中间的显示区域所包括的显示走线数量比其他显示区域包括的显示走线的数量要多，从液晶显示面板的中间显示区域到两侧显示区域包括的显示走线数量依次减少。并且液晶显示面板划分的显示区域的数量可以根据液晶面板的实际特性划分，本发明实施例不做限定。
本发明实施例中，目标亚像素点为液晶显示面板中任意一个显示区域中的亚像素点，因此，本发明实施例可以应用于液晶显示面板中任意一个显示区域，本发明实施例不做限定。
本发明实施例中，液晶显示面板的扫描电路会控制驱动集成电路依次向每一行的亚像素点输入灰阶数据，色偏补偿装置的数据库中会存储每一个亚像素 点的输出灰阶数据。因此，色偏补偿装置在接收到针对当前行中的目标亚像素点输入的目标输入灰阶数据时，色偏补偿装置首先会从数据库中获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据。其中，目标亚像素点为任意一条显示走线上的当前行亚像素点。
本发明实施例中，不论是输入灰阶数据还是输出灰阶数据，均为数字信号，用以指示色偏补偿装置将该数字信号通过数模转换得到模拟信号，即模拟电压，以控制色偏补偿装置将该模拟电压施加至该目标亚像素点上。
S102、该色偏补偿装置以该目标输入灰阶数据和该上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
本发明实施例中，目标关系表包括了任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系。因此，当色偏补偿装置获取到目标输入灰阶数据以及上行输出灰阶数据之后，色偏补偿装置会以该目标输入灰阶数据和该上行输出灰阶数据为依据，并结合目标关系表，查询与该标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
本发明实施例中，目标关系表中存储的输入灰阶数据以及输出灰阶数据的数值变化范围是根据数模转换器的位数决定的，如果数模转换器位数有n位，那么输入灰阶数据以及输出灰阶数据可输入的数值范围为0～2n-1位，本发明实施例不做限定。
本发明实施例中，目标关系表可以是目标亚像素点所在显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，也可以是液晶显示面板中任意一个显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，本发明实施例不做限定。该目标关系表可以存储在该目标关系表对应的显示区域，也可以存储在色偏补偿装置的数据库中，本发明实施例不作限定。
本发明实施例中，如果该目标关系表为液晶显示面板中任意一个显示区域 中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，那么，该色偏补偿装置以该目标输入灰阶数据和该上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据可以理解为，该色偏补偿装置以该目标输入灰阶数据和该上行输出灰阶数据为依据，直接从该目标关系表中查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
举例来说，表1为目标关系表，目标关系表中的灰阶数据的变化范围为0～255，且目标关系表中仅仅列举出部分具有代表性的灰阶数据以作参考，其他数据可以根据表中的数据通过线性算法计算出来，也可以是直接冲目标关系表中查询到，本发明实施例不做限定。如表1所示，如果色偏补偿装置接收到的目标亚像素点的目标输入灰阶数据为64，且获取到的与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据为128，那么该色偏补偿装置就可以根据目标输出灰阶数据以及上行输出灰阶数据，并结合该目标关系表可以查询到目标亚像素点的目标输出灰阶数据为62。
又举例来说，如果上行输出灰阶数据为144，而目标亚像素点的目标输入灰阶数据为112，虽然从表1给出的目标关系表中不能直接查出与上行输出灰阶数据和目标输入灰阶数据同时对应的目标输出灰阶数据，但是可以从表中查询到与当前行亚像素点输入灰阶数据为96和当前行亚像素点的上一行亚像素点的输出灰阶数据为128同时对应的当前行亚像素点输出灰阶数据为94，而与当前行亚像素点输入灰阶数据为128和当前行亚像素点的上一行亚像素点的输出灰阶数据为160同时对应的当前行亚像素点输出灰阶数据为126，因此，可以根据线性算法计算出与上行输出灰阶数据为144和目标输入灰阶数据为112同时对应的目标输出灰阶数据为110。
表1
Figure PCTCN2015077140-appb-000001
S103、该色偏补偿装置将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
本发明实施例中，当色偏补偿装置结合目标关系表查询到与目标输入灰阶数据和上行输出灰阶数据同时对应目标输出灰阶数据之后，该色偏补偿装置就可以将获取到的目标输出灰阶数据进行数模转换，然后得到该目标亚像素点的目标电压。
举例来说，假设参考电压为Vref，数模转换器有8位，那么灰阶数据的变化范围就为0～255，因此，灰阶数据0对应的电压就为0V，而灰阶数据m所对应的电压就为m/255×VrefV，其中，m∈{0,255}。因此，如果色偏补偿装置查询到的目标灰阶数据为17时，可以根据数模转换得到目标亚像素点的目标电压为Vref/15V。
S104、该色偏补偿装置根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
本发明实施例中，目标亚像素点为目标像素点所包括的RGB三个亚像素点中的一个亚像素点。当色偏补偿装置经过数模转换将目标输出灰阶数据转换为目标电压之后，该色偏补偿装置就可以将该目标亚像素点的电压调整为目标电压，然后该目标电压可以改变该目标亚像素点所覆盖区域的光透过率，即改变目标亚像素点所覆盖区域的光强度，从而改变了该目标亚像素点所在的目标像素点显示的颜色。
本发明实施例中，相邻三个亚像素点分别代表R(红)、G(绿)和B(蓝)三基色，因此，三个亚像素点可以组成一个像素点，一个像素点所显示的颜色是由代表R、G和B三基色的三个亚像素点分别透过的R、G、B光线的数量共同决定的，因此，改变其中一个亚像素点的电压，也就可以改变该亚像素点所在的像素点显示的颜色。
本发明实施例中，液晶显示面板划分有多个显示区域，每个显示区域包括列排列的多条显示走线，每条显示走线上包括行排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，因此，色偏补偿装置当接收当前行中目标亚像素点的目标输入灰阶数据时，会获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据，然后以目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据，并将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压，最后根据该目标电压调整该目标亚像素点对应的目标像素点显示的颜色。通过本发明实施例，可以将该目标亚像素点的本应该施加的电压调整至与目标输出数据对应的电压，从而改变该目标亚像素点所在的目标像素点显示的颜色，进而能够解决扇形区由阻抗差异导致液晶显示面板的色偏问题，提高显示效果。
请参阅图2，图2是本发明实施例公开的另一种色偏补偿方法的流程示意图。其中，图2所示的色偏补偿方法可以应用于TFT型液晶显示面板、TN型液晶显示面板以及三栅极型液晶显示面板等，本发明实施例不做限定。如图2所示，该色偏补偿方法可以包括以下步骤：
S201、色偏补偿装置接收当前行中目标亚像素点的目标输入灰阶数据，并 获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据。
S202、该色偏补偿装置判断该目标输入灰阶数据与该上行输出灰阶数据是否一致，若不一致，执行步骤S203；若一致，将该目标输入灰阶数据作为目标输出灰阶数据，并执行步骤S207。
本发明实施例中，当色偏补偿装置获取到目标输入灰阶数据以及上行输出灰阶数据之后，该色偏补偿装置会判断获取到的目标输入灰阶数据与上行输出灰阶数据是否一致。如果判断出该目标输入灰阶数据与上行输出灰阶数据不一致，就需要通过查表得出同时与该目标输入灰阶数据和上行输出灰阶数据对应的该目标亚像素点的目标输出灰阶数据；如果判断出该目标输入灰阶数据与上行输出灰阶数据不一致，其实从图1所示的方法实施例给出的表1中也可以看出，当前行亚像素点的输入灰阶数据与当前行亚像素点的上一行亚像素点的输出灰阶数据相同时，其当前行亚像素点的输出灰阶数据不变，因此，可以不需要这个查表过程，从而可以直接将目标亚像素点的目标输入灰阶数据作为该目标亚像素点的目标输出灰阶数据。
S203、在步骤S202判断出该目标输入灰阶数据与该上行输出灰阶数据不一致时，该色偏补偿装置从液晶显示面板的所有显示区域中选取任一个显示区域作为目标显示区域。
本发明实施例中，色偏补偿装置会预先存储包括任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系的目标关系表。其中，该目标关系表可以是目标亚像素点所在显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，也可以是液晶显示面板中任意一个显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表。其中，任一行亚像素点可以理解为当前行亚像素点，因此，任一行亚像素点的上一行亚像素点就可以理解为当前行亚像素点的上一行亚像素点。
本发明实施例中，该色偏补偿装置会从液晶显示面板的所有显示区域中任 意选取一个显示区域作为目标显示区域，因此，该目标关系表就为该目标显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表。
S204、该色偏补偿装置以该目标输入灰阶数据和该上行输出灰阶数据为依据，从目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的中间输出灰阶数据。
本发明实施例中，当色偏补偿装置获取到目标输入灰阶数据以及上行输出灰阶数据之后，该色偏补偿装置会以该目标输入灰阶数据以及该上行输出灰阶数据为依据，从目标关系表中查找到与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的中间输出灰阶数据。该中间输出灰阶数据是该目标显示区域的与该目标电压输入数据和该上行输出灰阶数据同时对应的输出灰阶数据，而并非该目标亚像素点的输出灰阶数据。
本发明实施例中，从目标关系表中查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的中间输出灰阶数据的过程，与图1所示的方法实施例中给出的直接从该目标亚像素点所在显示区域的目标关系表中，查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据的过程一致，既可以直接查表，也可以根据表中的数据通过线性算法计算出来，本发明实施例不再赘述。
S205、该色偏补偿装置获取预设的该目标显示区域的输出灰阶数据与该目标亚像素点所在显示区域的输出灰阶数据之间的关联系数。
本发明是实施例中，在整个液晶显示面板中，只有一个目标关系表，该目标关系表为目标显示区域中的灰阶数据关系表，而色偏补偿装置存储有目标显示区域的输出灰阶数据与每一个显示区域的输出灰阶数据的关联系数表。因此，想要得到每一个显示区域的当前行输入灰阶数据以及上一行输出灰阶数据同时对应的当前行输出灰阶数据，需要先从该目标关系表中查找到与该目标输入灰阶数据以及该上行输出灰阶数据同时对应的该目标显示区域的中间输出灰阶数据，然后再从该目标显示区域的输出灰阶数据与每一个显示区域的输出灰阶数据的关联系数表中获取该目标显示区域的输出灰阶数据与该目标亚像素点所在显示区域的输出灰阶数据之间的关联系数。
S206、该色偏补偿装置以该中间输出灰阶数据和该关联系数为依据，确定该目标亚像素点的目标输出灰阶数据。
本发明实施例中，当色偏补偿装置获取到中间输出灰阶数据以及关联系数之后，该色偏补偿装置会以该中间输出灰阶数据和该关联系数为依据，确定该目标亚像素点的目标输出灰阶数据。
举例来说，如图1所示的方法实施例中的表1所示，当色偏补偿装置获取到的目标亚像素点的目标输入灰阶数据为32，而该目标亚像素点的上一行亚像素点的上行输出灰阶数据为192，那么，可以从表1中查询到与该目标输入灰阶数据和该上行输出灰阶数据同时对应的中间输出灰阶数据为30，如果该目标显示区域与该目标亚像素点所在的显示区域的输出灰阶数据的关联系数为0.75，那么，就可以得到该目标亚像素点的目标输出灰阶数据为30*0.75＝22.5。
S207、该色偏补偿装置将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
本发明实施例中，在步骤S202判断出该目标输入灰阶数据与该上行输出灰阶数据一致时，该色偏补偿装置会将该目标输入灰阶数据作为该目标亚像素点的目标输出灰阶数据，然后再将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
本发明实施例中，在步骤S206确定出该目标亚像素点的目标输出数据之后，该色偏补偿装置也会将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
S207、该色偏补偿装置根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
作为一种可行的实施方式，该色偏补偿装置根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色的具体方式可以包括以下步骤：
步骤11)该色偏补偿装置将该目标亚像素点的电压调整至该目标电压；
步骤12)该色偏补偿装置根据该目标电压控制该目标亚像素点的液晶分子旋转至目标旋转角度；
步骤13)该色偏补偿装置根据该目标旋转角度调整该目标亚像素点的光线强度，以调整所述目标亚像素点所在的目标像素点显示的颜色。
本发明实施例中，该目标亚像素点的液晶分子可以理解为分布在该目标亚像素点所覆盖的区域中的液晶分子。因此，色偏补偿装置将目标输出灰阶数据数模转换得到该目标亚像素点的目标电压之后，会将该目标亚像素点的电压调整至目标电压，以使该目标亚像素点上的液晶分子旋转至目标旋转角度，这样可以调节透过液晶分子的光线的数量，从而改变了该目标亚像素点所在的目标像素点的RGB三基色的光线比例，进而改变了该目标亚像素点所在的目标像素点显示的颜色。目标像素点上显示的颜色是由该目标像素点上的三个亚像素点所透过的光线数量共同决定的，如果目标亚像素点上的电压改变，就会改变该目标亚像素点上的液晶分子的旋转角度，从而改变了该目标亚像素点所覆盖区域透过液晶分子的光线数量，进而使得该目标像素点显示的颜色发生改变，这样该色偏补偿装置就可以在显示时控制该目标亚像素点所在的目标像素点的显示的颜色为目标输出灰阶数据对应的颜色。
举例来说，假如目标亚像素点为G亚像素点，如果色偏补偿装置直接将该G亚像素点的目标输入灰阶数据128作为目标输出灰阶数据，那么此时的目标输出灰阶数据就为128，而此时该G亚像素点的目标电压就为0.50Vref，因此，该G亚像素点所在的目标像素点所显示的颜色相较于其他像素点，尤其是处于液晶显示面板中间区域的像素点显示的颜色可能会偏绿。而如果色偏补偿装置通过查询从目标关系表中查询到与目标输入灰阶数据128以及上行输出灰阶数据160同时对应的该目标亚像素点的目标输出灰阶数据为126，那么，该色偏补偿装置通过数模转换就可以得到的该目标亚像素点的目标电压，为0.49Vref，根据目标电压可以将该目标亚像素点的液晶分子的旋转角度调整至0.49Vref对应的目标旋转角度，那么该色偏补偿装置就可以确定出该G亚像素点所对应的绿色光线从该目标亚像素点所覆盖区域的液晶分子透过的数量，从而可以改变该G亚像素点所在的目标像素点中RGB的G光线所占的比例，进而可以改变目标像素点显示的颜色。
作为一种可行的实施方式，该色偏补偿装置将该目标亚像素点的电压调整至该目标电压的具体方式可以包括以下步骤：
步骤21)该色偏补偿装置判断该目标电压是否大于该目标亚像素点的当前电压；
步骤22)当判断出该目标电压大于该目标亚像素点的当前电压时，该色偏补偿装置将该目标亚像素点的当前电压增大至该目标电压；
步骤23)当判断出该目标电压小于该目标亚像素点的当前电压时，该色偏补偿装置将该目标亚像素点的当前电压减小至该目标电压。
本发明实施例中，色偏补偿装置将目标输出灰阶数据数模转换得到该目标亚像素点的目标电压之后，首先会判断该目标电压与该目标亚像素点上的当前电压的关系，如果该目标电压大于该目标亚像素点上的当前电压，那么该色偏补偿装置就需要对该目标亚像素点进行充电处理，以将该目标亚像素点上的电压增加至目标电压，而如果该目标电压小于该目标亚像素点上的当前电压，那么该色偏补偿装置就需要对该目标亚像素点进行放电处理，以将该目标亚像素点上的电压减小至目标电压，而如果该目标电压与该目标亚像素点上的当前电压一致，则该色偏补偿装置就会继续保持该目标亚像素点上的电压。
本发明实施例中，液晶显示面板划分有多个显示区域，每个显示区域包括列排列的多条显示走线，每条显示走线上包括行排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，因此，色偏补偿装置当接收当前行中目标亚像素点的目标输入灰阶数据时，会获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据，然后以目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据，并将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压，最后根据该目标电压调整该目标亚像素点对应的目标像素点显示的颜色。其中，液晶显示面板的所有显示区域中只针对一个显示区域设置的目标关系表，由于存储目标关系表需要寄存器地址，如果只有一个目标关系表，这样就可以减少寄存器地址，节约生产成本。通过本发明实施例，可以将该目标亚像素点的本应该施加的电压调整至与目标输出数据对应的电压，从而改变该目标亚像素点所在的目标像素点显示的颜色，进而能够解决由阻抗差异导致液晶显示面板的色偏问题，提高显示效果。
请参阅图3，图3是本发明实施例公开的一种色偏补偿装置的结构示意图。 其中，图3所示的色偏补偿装置300可以应用于TFT型液晶显示面板、TN型液晶显示面板以及三栅极型液晶显示面板等，本发明实施例不做限定。如图3所示，该色偏补偿装置300可以包括以下单元：
获取单元301，用于接收当前行中目标亚像素点的目标输入灰阶数据，并获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据。
本发明实施例中，液晶显示面板上划分有多个显示区域，每个显示区域包括列式排列的多条显示走线，每条显示走线上包括行式排列的多个像素点，每一个像素点包括至少三个行式排列的亚像素点，每一个像素点上常见的三个亚像素点分别代表R(红)、G(绿)和B(蓝)颜色的亚像素点，其中，每一个像素点中还可以包括W(白)以及Y(黄)颜色的亚像素点，本发明实施例不做限定。
本发明实施例中，每条显示走线上包括的像素点的数量是固定的，所以每条显示走线上包括的亚像素点的数量也就固定，但每个显示区域所包括的显示走线的数量是可以不相同的，对液晶显示面板划分区域是根据扇形区走线的阻抗特性划分，液晶显示面板的显示区域以液晶显示面板中心线为中心呈对称分布，且靠近液晶显示面板中间的显示区域所包括的显示走线数量比其他显示区域包括的显示走线的数量要多，从液晶显示面板的中间显示区域到两侧显示区域包括的显示走线数量依次减少。并且液晶显示面板划分的显示区域的数量可以根据液晶面板的实际特性划分，本发明实施例不做限定。
本发明实施例中，目标亚像素点为液晶显示面板中任意一个显示区域中的亚像素点，因此，本发明实施例可以应用于液晶显示面板中任意一个显示区域，本发明实施例不做限定。
本发明实施例中，液晶显示面板的扫描电路会控制驱动集成电路依次向每一行的亚像素点输入灰阶数据，色偏补偿装置300的数据库中会存储每一个亚像素点的输出灰阶数据。因此，获取单元301在接收到针对当前行中的目标亚像素点输入的目标输入灰阶数据之后，会从数据库中获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据。其中，目标亚像素点为任意一条显示走线上的当前行亚像素点。
本发明实施例中，不论是输入灰阶数据还是输出灰阶数据，均为数字信号，用以指示色偏补偿装置300将该数字信号通过数模转换得到模拟信号，即模拟电压，以控制色偏补偿装置300将该模拟电压施加至该目标亚像素点上。
查询单元302，用于以上述获取单元301获取到的目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
本发明实施例中，目标关系表包括了任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系。因此，当获取单元301获取到目标输入灰阶数据以及上行输出灰阶数据之后，查询单元302会以该目标输入灰阶数据和该上行输出灰阶数据为依据，并结合目标关系表，查询与该标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
本发明实施例中，目标关系表中存储的输入灰阶数据以及输出灰阶数据的数值变化范围是根据数模转换器的位数决定的，如果数模转换器位数有n位，那么输入灰阶数据以及输出灰阶数据可输入的数值范围为0～2n-1位，本发明实施例不做限定。
本发明实施例中，目标关系表可以是目标亚像素点所在显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，也可以是液晶显示面板中任意一个显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，本发明实施例不做限定。该目标关系表可以存储在该目标关系表对应的显示区域，也可以存储在色偏补偿装置300的数据库中，本发明实施例不作限定。
本发明实施例中，如果该目标关系表为液晶显示面板中任意一个显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，那么，查询单元302以该目标输入灰阶数据和该上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标 亚像素点的目标输出灰阶数据可以理解为，查询单元302以该目标输入灰阶数据和该上行输出灰阶数据为依据，直接从该目标关系表中查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
举例来说，结合实施例一中给出的目标关系表，该目标关系表中的灰阶数据的变化范围为0～255，且目标关系表中仅仅列举出部分具有代表性的灰阶数据以作参考，其他数据可以根据表中的数据通过线性算法计算出来，也可以是直接冲目标关系表中查询到，本发明实施例不做限定。如表1所示，如果获取单元301接收到的目标亚像素点的目标输入灰阶数据为64，且获取到的与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据为128，那么查询单元302就可以根据获取单元301获取到的目标输出灰阶数据以及上行输出灰阶数据，并结合该目标关系表可以查询到目标亚像素点的目标输出灰阶数据为62。
又举例来说，如果上行输出灰阶数据为144，而目标亚像素点的目标输入灰阶数据为112，虽然从表1给出的目标关系表中不能直接查出与上行输出灰阶数据和目标输入灰阶数据同时对应的目标输出灰阶数据，但是查询单元302可以从表中查询到与当前行亚像素点输入灰阶数据为96和当前行亚像素点的上一行亚像素点的输出灰阶数据为128同时对应的当前行亚像素点输出灰阶数据为94，而与当前行亚像素点输入灰阶数据为128和当前行亚像素点的上一行亚像素点的输出灰阶数据为160同时对应的当前行亚像素点输出灰阶数据为126，因此，可以根据线性算法计算出与上行输出灰阶数据为144和目标输入灰阶数据为112同时对应的目标输出灰阶数据为110。
数模转换单元303，用于将上述查询单元302查询到的目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
本发明实施例中，当查询单元302结合目标关系表查询到与目标输入灰阶数据和上行输出灰阶数据同时对应目标输出灰阶数据之后，数模转换单元303就可以将获取到的目标输出灰阶数据进行数模转换，然后得到该目标亚像素点的目标电压。
举例来说，假设参考电压为Vref，数模转换器有8位，那么灰阶数据的变化范围就为0～255，因此，灰阶数据0对应的电压就为0V，而灰阶数据m所对应的电压就为m/255×VrefV，其中，m∈{0,255}。因此，如果查询单元302查询到的目标灰阶数据为17时，数模转换单元303就可以根据数模转换得到目标亚像素点的目标电压为Vref/15V。
调整单元304，用于根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
本发明实施例中，目标亚像素点为目标像素点所包括的RGB三个亚像素点中的一个亚像素点。当数模转换单元303经过数模转换将目标输出灰阶数据转换为目标电压之后，调整单元304就可以将该目标亚像素点的电压调整为目标电压，然后该目标电压可以改变该目标亚像素点所覆盖区域的光透过率，即改变目标亚像素点所覆盖区域的光强度，从而改变了该目标亚像素点所在的目标像素点显示的颜色。
本发明实施例中，相邻三个亚像素点分别代表R(红)、G(绿)和B(蓝)三基色，因此，三个亚像素点可以组成一个像素点，一个像素点搜显示的颜色是由代表R、G和B三基色的三个亚像素点分别透过的R、G、B光线的数量共同决定的，因此，改变其中一个亚像素点的电压，也就可以改变该亚像素点所在的像素点显示的颜色。
本发明实施例中，液晶显示面板划分有多个显示区域，每个显示区域包括列排列的多条显示走线，每条显示走线上包括行排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，因此，色偏补偿装置当接收当前行中目标亚像素点的目标输入灰阶数据时，会获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据，然后以目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据，并将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压，最后根据该目标电压调整该目标亚像素点对应的目标像素点显示的颜色。通过本发明实施例，可以 将该目标亚像素点的本应该施加的电压调整至与目标输出数据对应的电压，从而改变该目标亚像素点所在的目标像素点显示的颜色，进而能够解决扇形区由阻抗差异导致液晶显示面板的色偏问题，提高显示效果。
请参阅图4，图4是本发明实施例公开的另一种色偏补偿装置的结构示意图。其中，图4所示的色偏补偿装置400可以应用于TFT型液晶显示面板、TN型液晶显示面板以及三栅极型液晶显示面板等，本发明实施例不做限定。本发明实施例中的获取单元401以及数模转换单元403与图3所示的色偏补偿装置300中的获取单元301以及数模转换单元303的功能相同，本发明实施例不再赘述。如图4所示，该色偏补偿装置400可以包括以下单元：
获取单元401，用于接收当前行中目标亚像素点的目标输入灰阶数据，并获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据。
判断单元402，用于判断上述获取单元401获取到的目标输入灰阶数据与上行输出灰阶数据是否一致。
本发明实施例中，当获取单元401获取到目标输入灰阶数据以及上行输出灰阶数据之后，判断单元402会判断获取到的目标输入灰阶数据与上行输出灰阶数据是否一致。如果判断单元402判断出该目标输入灰阶数据与上行输出灰阶数据不一致，查询单元403就需要通过查表得出同时与该目标输入灰阶数据和上行输出灰阶数据对应的该目标亚像素点的目标输出灰阶数据；如果判断单元402判断出该目标输入灰阶数据与上行输出灰阶数据不一致，其实从图1所示的方法实施例给出的表1中也可以看出，当前行亚像素点的输入灰阶数据与当前行亚像素点的上一行亚像素点的输出灰阶数据相同时，其当前行亚像素点的输出灰阶数据不变，因此，可以不需要这个查表过程，从而可以直接将目标亚像素点的目标输入灰阶数据作为该目标亚像素点的目标输出灰阶数据。
查询单元403，用于在上述判断单元402判断出该目标输入灰阶数据与上行输出灰阶数据不一致时，以上述获取单元401获取到的目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上 行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据。
作为一种可行的所述方式，该查询单元403可以包括选取子单元4031、查询子单元4032、获取子单元4033以及确定子单元4034，其中：
选取子单元4031，用于从液晶显示面板的所有显示区域中选取任一个显示区域作为目标显示区域。
查询子单元4032，用于以上述获取单元401获取到的目标输入灰阶数据和上行输出灰阶数据为依据，从目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的中间输出灰阶数据。
获取子单元4033，用于获取预设的该目标显示区域的输出灰阶数据与该目标亚像素点所在显示区域的输出灰阶数据之间的关联系数。
确定子单元4034，用于以上述查询子单元4032查询出的中间输出灰阶数据和上述获取子单元4033获取到的关联系数为依据，确定该目标亚像素点的目标输出灰阶数据。
本发明实施例中，色偏补偿装置400会预先存储包括任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系的目标关系表。其中，该目标关系表可以是目标亚像素点所在显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表，也可以是液晶显示面板中任意一个显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表。其中，任一行亚像素点可以理解为当前行亚像素点，因此，任一行亚像素点的上一行亚像素点就可以理解为当前行亚像素点的上一行亚像素点。
本发明实施例中，选取子单元4031会从液晶显示面板的所有显示区域中任意选取一个显示区域作为目标显示区域，因此，该目标关系表就为该目标显示区域中的任一行亚像素点的输入灰阶数据、该任一行亚像素点的上一行亚像素点的输出灰阶数据以及该任一行亚像素点的输出灰阶数据三者的对应关系表。
本发明实施例中，当获取单元401获取到目标输入灰阶数据以及上行输出 灰阶数据之后，查询子单元4032会以该目标输入灰阶数据以及该上行输出灰阶数据为依据，从目标关系表中查找到与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的中间输出灰阶数据。该中间输出灰阶数据是该目标显示区域的与该目标电压输入数据和该上行输出灰阶数据同时对应的输出灰阶数据，而并非该目标亚像素点的输出灰阶数据。
本发明实施例中，查询子单元4032从目标关系表中查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的中间输出灰阶数据的过程，与图1所示的方法实施例中给出的查询单元302直接从该目标亚像素点所在显示区域的目标关系表中，查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据的过程一致，既可以直接查表，也可以根据表中的数据通过线性算法计算出来，本发明实施例不再赘述。
本发明实施例中，在整个液晶显示面板中，只有一个目标关系表，该目标关系表为目标显示区域中的灰阶数据关系表，而色偏补偿装置存储有目标显示区域的输出灰阶数据与每一个显示区域的输出灰阶数据的关联系数表。因此，想要得到每一个显示区域的当前行输入灰阶数据以及上一行输出灰阶数据同时对应的当前行输出灰阶数据，需要查询子单元4032先从该目标关系表中查找到与该目标输入灰阶数据以及该上行输出灰阶数据同时对应的该目标显示区域的中间输出灰阶数据，然后获取子单元4033再从该目标显示区域的输出灰阶数据与每一个显示区域的输出灰阶数据的关联系数表中获取该目标显示区域的输出灰阶数据与该目标亚像素点所在显示区域的输出灰阶数据之间的关联系数。
本发明实施例中，当查询子单元4032查询到中间输出灰阶数据以及获取子单元4033获取到关联系数之后，确定子单元4034会以该中间输出灰阶数据和该关联系数为依据，确定该目标亚像素点的目标输出灰阶数据。
举例来说，如图1所示的方法实施例中的表1所示，当获取单元401获取到的目标亚像素点的目标输入灰阶数据为32，而该目标亚像素点的上一行亚像素点的上行输出灰阶数据为192，判断单元402判断出目标输入灰阶数据与上行输出灰阶数据不一致，那么，查询子单元4032就可以从表1中查询到与 该目标输入灰阶数据和该上行输出灰阶数据同时对应的中间输出灰阶数据为30，如果获取子单元4033获取到该目标显示区域与该目标亚像素点所在的显示区域的输出灰阶数据的关联系数为0.75，那么，确定子单元4034就可以得到该目标亚像素点的目标输出灰阶数据为30*0.75＝22.5。
数模转换单元404，用于将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
本发明实施例中，在上述判断单元402判断出该目标输入灰阶数据与该上行输出灰阶数据一致时，该色偏补偿装置400会将该目标输入灰阶数据作为该目标亚像素点的目标输出灰阶数据，然后数模转换单元404再将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
本发明实施例中，在上述查询单元403查询到该目标亚像素点的目标输出灰阶数据之后，数模转换单元404也会将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压。
调整单元405，用于根据上述数模转换单元404得到的目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
作为一种可行的实施方式，调整单元405可以包括调整子单元4051、控制子单元4052以及执行子单元4053，其中：
调整子单元4051，用于将该目标亚像素点的电压调整至该目标电压。
控制子单元4052，用于根据该目标电压控制该目标亚像素点的液晶分子旋转至目标旋转角度。
执行子单元4053，用于根据该目标旋转角度调整该目标亚像素点的光线强度，以调整所述目标亚像素点所在的目标像素点显示的颜色。
本发明实施例中，该目标亚像素点的液晶分子可以理解为分布在该目标亚像素点所覆盖的区域中的液晶分子。因此，数模转换单元404将目标输出灰阶数据数模转换得到该目标亚像素点的目标电压之后，调整子单元4051会将该目标亚像素点的电压调整至目标电压，以使控制子单元4052控制该目标亚像素点上的液晶分子旋转至目标旋转角度，这样就可以调节透过液晶分子的光线的数量，从而改变了该目标亚像素点所在的目标像素点的RGB三基色的光线比例，进而使执行子单元4053调整该目标亚像素点所在的目标像素点显示的 颜色。目标像素点上显示的颜色是由该目标像素点上的三个亚像素点所透过的光线数量共同决定的，如果目标亚像素点上的电压改变，就会改变该目标亚像素点上的液晶分子的旋转角度，从而改变了该目标亚像素点所覆盖区域透过液晶分子的光线数量，进而使得该目标像素点显示的颜色发生改变，这样执行子单元4053就可以在显示时控制该目标亚像素点所在的目标像素点的显示的颜色为目标输出灰阶数据对应的颜色。
举例来说，假如目标亚像素点为G亚像素点，如果色偏补偿装置400直接将该G亚像素点的目标输入灰阶数据128作为目标输出灰阶数据，那么此时的目标输出灰阶数据就为128，而此时该G亚像素点的目标电压就为0.50Vref，因此，该G亚像素点所在的目标像素点所显示的颜色相较于其他像素点，尤其是处于液晶显示面板中间区域的像素点显示的颜色可能会偏绿。而如果查询单元403通过查询从目标关系表中查询到与目标输入灰阶数据128以及上行输出灰阶数据160同时对应的该目标亚像素点的目标输出灰阶数据为126，那么，数模转换单元404通过数模转换就可以得到的该目标亚像素点的目标电压，为0.49Vref，然后调整单元405就会根据目标电压可以将该目标亚像素点的液晶分子的旋转角度调整至0.49Vref对应的目标旋转角度，然后该色偏补偿装置400就可以确定出该G亚像素点所对应的绿色光线从该目标亚像素点所覆盖区域的液晶分子透过的数量，从而可以改变该G亚像素点所在的目标像素点中RGB的G光线所占的比例，进而可以改变目标像素点显示的颜色。
作为一种可行的实施方式，该调整子单元4051还可以执行以下操作：
判断该目标电压是否大于该目标亚像素点的当前电压；
在判断出该目标电压大于该目标亚像素点的当前电压时，将该目标亚像素点的当前电压增大至该目标电压；
在判断出该目标电压小于该目标亚像素点的当前电压时，将该目标亚像素点的当前电压减小至该目标电压。
本发明实施例中，数模转换单元404将目标输出灰阶数据数模转换得到该目标亚像素点的目标电压之后，调整单元405中的调整子单元4051首先会判断该目标电压与该目标亚像素点上的当前电压的关系，如果该目标电压大于该目标亚像素点上的当前电压，那么该调整子单元4051就需要对该目标亚像素 点进行充电处理，以将该目标亚像素点上的电压增加至目标电压，而如果该目标电压小于该目标亚像素点上的当前电压，那么调整子单元4051就需要对该目标亚像素点进行放电处理，以将该目标亚像素点上的电压减小至目标电压，而如果该目标电压与该目标亚像素点上的当前电压一致，则调整子单元4051就会继续保持该目标亚像素点上的电压。
本发明实施例中，液晶显示面板划分有多个显示区域，每个显示区域包括列排列的多条显示走线，每条显示走线上包括行排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，因此，色偏补偿装置当接收当前行中目标亚像素点的目标输入灰阶数据时，会获取与该目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据，然后以目标输入灰阶数据和上行输出灰阶数据为依据，结合目标关系表查询与该目标输入灰阶数据和该上行输出灰阶数据同时对应的该目标亚像素点的目标输出灰阶数据，并将该目标输出灰阶数据进行数模转换得到该目标亚像素点的目标电压，最后根据该目标电压调整该目标亚像素点对应的目标像素点显示的颜色。其中，液晶显示面板的所有显示区域中只针对一个显示区域设置的目标关系表，由于存储目标关系表需要寄存器地址，如果只有一个目标关系表，这样就可以减少寄存器地址，节约生产成本。通过本发明实施例，可以将该目标亚像素点的本应该施加的电压调整至与目标输出数据对应的电压，从而改变该目标亚像素点所在的目标像素点显示的颜色，进而能够解决由阻抗差异导致液晶显示面板的色偏问题，提高显示效果。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种色偏补偿方法，应用于液晶显示面板，其特征在于，所述液晶显示面板划分为多个显示区域，每个显示区域包括列式排列的多条显示走线，每条显示走线上包括行式排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，其中：
    接收当前行中目标亚像素点的目标输入灰阶数据，并获取与所述目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据；
    以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，结合目标关系表查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据，其中，所述目标关系表包括任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系；
    将所述目标输出灰阶数据进行数模转换得到所述目标亚像素点的目标电压；
    根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
  2. 根据权利要求1所述的方法，其特征在于，所述以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，从目标关系表中查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据，包括：
    从所述液晶显示面板的所有显示区域中选取任一个显示区域作为目标显示区域；
    以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，从所述目标关系表中查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的中间输出灰阶数据，其中，所述目标关系表包括所述目标显示区域的任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系；
    获取预设的所述目标显示区域的输出灰阶数据与所述目标亚像素点所在显示区域的输出灰阶数据之间的关联系数；
    以所述中间输出灰阶数据和所述关联系数为依据，确定所述目标亚像素点的目标输出灰阶数据。
  3. 根据权利要求1所述的方法，其特征在于，所述目标关系表包括所述目标亚像素点所在显示区域的任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系。
  4. 根据权利要求1～3任一项所述的方法，其特征在于，所述根据所述目标电压调整所述目标亚像素点所在的目标像素点显示的颜色，包括：
    将所述目标亚像素点的电压调整至所述目标电压；
    根据所述目标电压控制所述目标亚像素点的液晶分子旋转至目标旋转角度；
    根据所述目标旋转角度调整所述目标亚像素点的光线强度，以调整所述目标亚像素点所在的目标像素点显示的颜色。
  5. 根据权利要求4所述的方法，其特征在于，所述接收当前行中目标亚像素点的目标输入灰阶数据，并获取与所述目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据之后，所述方法还包括：
    判断所述目标输入灰阶数据与所述上行输出灰阶数据是否一致；
    若否，则执行所述以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，结合目标关系表查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据的步骤。
  6. 一种色偏补偿装置，应用于液晶显示面板，其特征在于，所述液晶显示面板划分为多个显示区域，每个显示区域包括列式排列的多条显示走线，每条显示走线上包括行式排列的多个像素点，每个像素点包括至少三个行式排列的亚像素点，其中：
    获取单元，用于接收当前行中目标亚像素点的目标输入灰阶数据，并获取 与所述目标亚像素点在同一条显示走线上的上一行亚像素点的上行输出灰阶数据；
    查询单元，用于以所述获取单元获取到的所述目标输入灰阶数据和所述上行输出灰阶数据为依据，结合目标关系表查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据，其中，所述目标关系表包括任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系；
    数模转换单元，用于将所述查询单元查询到的所述目标输出灰阶数据进行数模转换得到所述目标亚像素点的目标电压；
    调整单元，用于根据所述数模转换单元得到的目标电压调整所述目标亚像素点所在的目标像素点显示的颜色。
  7. 根据权利要求6所述的装置，其特征在于，所述查询单元包括选取子单元、查询子单元、获取子单元以及确定子单元，其中：
    所述选取子单元，用于从所述液晶显示面板的所有显示区域中选取任一个显示区域作为目标显示区域；
    所述查询子单元，用于以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，从所述目标关系表中查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的中间输出灰阶数据，其中，所述目标关系表包括所述目标显示区域的任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系；
    所述获取子单元，用于获取预设的所述目标显示区域的输出灰阶数据与所述目标亚像素点所在显示区域的输出灰阶数据之间的关联系数；
    所述确定子单元，用于以所述查询子单元查询到的所述中间输出灰阶数据和所述获取子单元获取到的所述关联系数为依据，确定所述目标亚像素点的目标输出灰阶数据。
  8. 根据权利要求6所述的装置，其特征在于，所述目标关系表包括所述目标亚像素点所在显示区域的任一行亚像素点的输入灰阶数据、所述任一行亚像素点的上一行亚像素点的输出灰阶数据以及所述任一行亚像素点的输出灰阶数据三者的对应关系。
  9. 根据权利要求6～8任一项所述的装置，其特征在于，所述调整单元包括调整子单元、控制子单元以及执行子单元，其中：
    所述调整子单元，用于将所述目标亚像素点的电压调整至所述目标电压；
    所述控制子单元，用于根据所述调整子单元得到的所述目标电压控制所述目标亚像素点的液晶分子旋转至目标旋转角度；
    所述执行子单元，用于根据所述控制子单元得到的所述目标旋转角度调整所述目标亚像素点的光线强度，以调整所述目标亚像素点所在的目标像素点显示的颜色。
  10. 根据权利要求9所述的装置，其特征在于，所述装置还包括：
    判断单元，用于判断所述目标输入灰阶数据与所述上行输出灰阶数据是否一致；
    其中，所述查询单元具体用于在所述判断单元判断出所述目标输入灰阶数据与所述上行输出灰阶数据不一致时，以所述目标输入灰阶数据和所述上行输出灰阶数据为依据，结合目标关系表查询与所述目标输入灰阶数据和所述上行输出灰阶数据同时对应的所述目标亚像素点的目标输出灰阶数据。
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